Radio appliance



Oct. 2, 192a V A. B. FISHWICK RADIO APPLIANCE Filed Nov. 12, 19k;

M W H N M H M M H WWK ,4 Trap/105m.

Patented Oct. 2, 1928.

ALBERT B. FISHWICK, OF CINCINNATI, OHIO.

, RADIO APPLIANCE.

Application filed November 12, 1923. Serial No. 674,225.

My invention relates to devices or structures for use in connection with radio equipment, particularly as wave interceptors, in place of antennae either aerial or loop.

It is my object to provide an inexpensive and yet highly eflicient device in which a series of wires are held on a linear member, and which device can be directly, inductively or electro-statically coupled in radio work for the purpose of intercepting of either Hertzian waves, or any induced waves within the radio set.

In its essence my invention consists in the device itself aside from the methods of use thereof, but I have found in my experiments several very interesting modes of use, which demonstrate the value of my construction. It is not my purpose, however, to deal with theories in this specification, but merely to describe the mechanism itself, and several modes of use thereof. Among other things the device retains a series of equally interspaced wires between webs of fabric, and bound in with a protective and insulating layer of bituminous nature, preferably asphalt.

' I accomplish my objects bythat certain construction and arrangement of parts to be hereinafter more specifically pointed out and claimed.

In the drawing:

Figure 1 is a plan view of the device extended.

Figure Q'is'a section on the line 22 of Figure 1. I v v Figure 3 is a detail section of the condenser or inductive method of coupling up my device. 1 p Figure 4 is adiagram, partly a perspective,

indicating themethod approved by me, of

using the device in place of an aerial antenna, wherein a direct coupling is employed- Figure'5 is a diagram, illustrating the approved use of my device as an interceptor,

between the prim ary' of a radio set and the ground, omitting theusual antenna connection. In this form the inductive or condenser mode of coupling is used.

In forming my device, I employ a' special machine, which is'known in the art, and

while pasting together two webs of paper by means of asph'alt, -I deposit between the webs in the plastic asphalt, a series of wires of the desired number, and of the. desired spacing.

Thus I have the paper webs 1,1, the asphalt layer 2, and the interspaced wires 3. The number of strands and the spacing will be arranged according to the desired wave length limits of a radio set. The outer webs may be of paper, or more expensive fabric, is desired, paper being perfectly satisfactory. The interposed binding layer or asphalt retains the wires in position, and in addition insulates them highly against each other, in the plane of the paper, and furthermore, insulates them all the way around.

In one form of the device, a brass hinder, or other form of conductive material binder is used, same being a. fold of metal 4:. In

mounting this brass strip over the'paper, in this form I insert a. fold'of insulating ma.- terial 5, in the holder, and then bend it over the end of the paper, The brass strip will then extend across the end of the paper without direct connection to the wires. The binding post 6 of any usual form will be inserted through the brass strip, but not in positionfto contact with any of the wires.

This form I have termed a condenser type, or electrostatic coupling, and I have found that an excellent method of hooking up the device is to roll it around a core, orroll it and insert it into a with the wire fro-m the ground end of the primary 8 connected to the terminal or binding post 6, and another wire run from the antenna end of the as indicated at 9. 1 An audio set so coupled, so far as my experiments have gone, will be very powerfully energized by radio waves, although by what primary to the ground,

theory I. do not know. In my experiments- I have used a piece of the paper 12 inches wide, with fifteen wires, three quarters of an inch apart, and the paper a little over six feet long, coiled inside of a standard mailing tube of about two and one half inch internal diameter. The wires are carbon steel piano wires of very fine gauge.

In this method of use the device of my invention is the only wave intercepting device employed. v

I find that my device can be hung up so as to fall straight, and be used as" an antenna, being coupled to the primary of the set in the usualwa-y that an antenna is coupled up. This I have shown in Figure 4, wherein the one web of paper is brushed away as indi cated at 10, leaving the wires 3 exposed. The brass strip or' fold is'then secured to the paper paper tube indicated at.

the brass.

cating the first instrument of a. radio set, this is merely for purposes of illustration. My device will have use in induction work generally, as the secondary of a transformer, but the value to radio work, as so far developed has been its function in intercepting Hertzian waves. I find an improvement in static noises, when using 7 my device, although whether this is a function of the device, or of the chance arrangement of my experimental models, I do not know.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, isz- 1. An article of manufacture for use as a radio antenna or wave reception unit, comprising a. series of strands of wire arranged in interspaced parallel relation, flexible webs united by a binding layer about said wires, to forrn a flat strip and to permanently space said wires, and a conductive element laid across the said strip, but conductively out of connect-ion with the several wires, said conductive element serving as a capacity element to be secured to a radio receiving set.

2. An article of manufacture for use as a radio antenna or wave reception unit, comprising a plurality of Webs of paper, secured together by a binding layer of bitumin, and a series of wires arranged in interspaced parallel relation within the said binding layer, and means common to all of said wires for electrically connecting said wires to a radio receiving set.

3. An article of manufacture for use as a radio antenna or wave reception unit, comprising a plurality of webs of paper, secured together by a binding layer of asphalt-like material, and a series of wires arranged in interspaced parallel relation within the said binding layer, and means common to all of said Wires'for electrically connecting said wires to a radio receiving set, said means comprising a strip of conductive material secured to the Webs across the wires, but out of contact with the wires.

4. A material from which electric wave sensitive units may be formed comprising webs of paper secured together by a binding layer of dielectric adhesive of bituminous nature and strands of interspaced wires extending through said material, within the binding layer.

5. An article of manufacture comprising a coiled strip of material formed of a plurality of webs bound together by a binding layer,

and a series of parallel interspaced wires extending through the binding layer, lengthwise of the material, and a strip of conductive material secured across the wires, but out of electrical cont-act connection therewith.

6. An article of manufacture comprising an antenna in the form of a flat flexible strip, formed of layers of flexible material, united by a binding layer of asphalt-like substance, strands of interspaced, parallel wires extending through said binding layer, lengthwise of the strip, and a metal binding mounted over the end of the strip, same being insulated from contact with the wires.

ALBERT B. FISHWICK. 

